LeakCanary发现Android WebView内存泄漏

private ResultReceiver mResultReceiver = new ResultReceiver(new Handler()) {
    @Override
    public void onReceiveResult(int resultCode,Bundle resultData) {
        getContentViewClient().onImeStateChangeRequested(
                resultCode == InputMethodManager.RESULT_SHOWN
                || resultCode == InputMethodManager.RESULT_UNCHANGED_SHOWN);
        if (resultCode == InputMethodManager.RESULT_SHOWN) {
            // If OSK is newly shown,delay the form focus until
            // the onSizeChanged (in order to adjust relative to the
            // new size).
            // Todo(jdduke): We should not assume that onSizeChanged will
            // always be called,crbug.com/294908.
            getContainerView().getwindowVisibledisplayFrame(
                    mFocusPreOSKViewportRect);
        } else if (hasFocus() && resultCode
                == InputMethodManager.RESULT_UNCHANGED_SHOWN) {
            // If the OSK was already there,focus the form immediately.
            assert mWebContents != null;
            mWebContents.scrollFocusedEditableNodeIntoView();
        }
    }
};

@Override
public ResultReceiver getNewShowKeyboardReceiver() {
    return mResultReceiver;
}

使mResultReceiver成为私有的.